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MG MGF Technical - Heat sheild

I was looking at his on ebay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=2484029121&ssPageName=ADME:B:SS:UK:1#ebayphotohosting when I noticed that there is a ruddy great big heat shield over the whole exhaust manifold!

This must be new cos my 98 F ain't got one !
Steve Ratledge

Looks like one of his tyres is on the wrong side. The tread patterns look different. Maybe that is why he had the accident.

Sorry, don't know off hand about the heat sheild.
Neil Courtney

The answer is in the title - its a TF engine. TF's have manifold heatshields fitted, F's dont ;)
Steve White

going from the tyres, that must be a 135 engine - nice view of the remote thermostat for those who have never seen one!
tony

I saw it was a TF engine ;-) I was trying to provoke a debate in to the reasons for it?

Does it help keep the engin bay temp down or simply keep the parcel shelf cooler?
Steve Ratledge

Ah is that where the heat shield goes.

i bought a 2nd hand inlet manifold and the guy included a heat shield.

Spent bloody hours going over my car trying to find mine and couldnt understand why I didnt have one :-(
Bob Millar

The F does have heatsheilds, they are on either side and are made from sheet metal with folds. This is formed crimpled sheet alu.

The thing that really needs protecting here is the alternator - perhaps they thought this arangement gave better clearance - or perhaps it can be used in more cars
Will Munns

Yup, the F's heat shields are folded ali plate. I suspect that the reason for the new heat shield are for reasons of cost and production convenience: the heat shield on that photo is the same as that used on all the FWD cars. Much easier to put the same heat shield on all engines produced than to have different heat shields according to the model of car that the engine is going to be fitted into.

Not the best of adverts is it? It doesn't actually say *which* engine is up for sale!!!! It's not a VVC - but is it a 1.6 or a 1.8 MPi? I think that it's a 1.8 135PS engine from the inlet manifold plenum; the 1.6 115PS I think still uses the plastic inlet manifold?

Interesting point to note is the new PRT thermostat, located to the right of the heat shield noted above...
Rob Bell

Ahh - so that's what the engine looks like! Anyone wanna download that photo and wack on some labels so us thickos can see exactly which bits your talking about?
Holster

>>nice view of the remote thermostat for those who have never seen one!

Not many engines around with these - so certainly validates the age of the engine.
Dave Livingstone

>> Anyone wanna download that photo and wack on some labels so us thickos can see exactly which bits your talking about? <<

Great idea Holster. I haven't got time right now, but might just do this later :o)¤
Rob Bell

Can I assume from that pic that it would be possible to remove the whole subframe with the engine in place.

Wheel it away, work on it, wheel it back into place, then refit the subframe?
Bob Millar

Yes - but, you still have to disconnect a lot of stuff, like the hoses, the wireing loom, the cables for acccelerator and gearchange, the hydralics for the clutch. etc etc.
Will Munns

>>The answer is in the title - its a TF engine. TF's have manifold heatshields fitted, F's dont ;)<<

THat's what the heatshield looks like on my 2001 F.
David Clelland

The new heat shield is probably contemporanious with the EU3 changes introduced in Jan 2001 in that case David...
Rob Bell

My F 160 SE Trophy has one
Mike (London Office)

>>contemporanious<<

Lol, you been reading your dictionary again Rob.
David Clelland

> Yes - but, you still have to disconnect a lot of stuff, like the hoses, the wireing loom, the cables for acccelerator and gearchange, the hydralics for the clutch. etc etc.


Wouldnt this be easier than simply removing the engine? Do you have to remove the gearbox from the engine when removing the engine alone?
Bob Millar

Why would you want to remove the engine?
Will Munns

Given that the TF claims 'a reduction of 20% in the engine bay temps'. I wonder how much is down to a) 'Larger alloy radiator' b) better side air intakes and c) this heat sheild?
Steve Ratledge

b - better engine air intakes Steve. The exhaust heat shield, as we've seen, can also be found on the MGF. The radiator? It probably has a similar cooling capacity to the MGF item, and in any case, the thermostat determines coolant temperature more than the rad, so a bigger rad is unlikely to have any dramatic impact on engine bay temperatures...
Rob Bell

I have never heard my TF's engine bay fan come on - it either doesn't work or all the holes and missing panels in the wheel arches really make a difference
tony

I've only had the engine bay fan come on once on my TF in the 16 months I've owned it. That was when I was stationary in the pits after doing 10 laps of Beford Autodrome on a hot day :D
Steve White

Engine bay fan rarely comes on with my '98 VVC - never has done - before or after various mods!
Dave Livingstone

The 1.8MPi has, for some reason, a much lower fan-on temperature than the VVC. On my car it comes on pretty frequently in warm weather - especially in heavy traffic conditions...

Never understood why the VVC cooling fan should come on at higher temperatures. Anyone got a good theory on this?
Rob Bell

> Why would you want to remove the engine?


Just curious but didnt you remove it when you had you recent HGF Will?
Bob Millar

Nope, all work done in situ, sat on top of the car for some!
Will Munns

Ah my bad.

Thought you had it out! (the engine ;-) )
Bob Millar

This thread was discussed between 07/07/2004 and 12/07/2004

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